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Yasumichi Yasuda
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Hitachi, JP
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last 30 patents
Information
Patent Grant
Semiconductor device and power converter using same
Patent number
6,198,126
Issue date
Mar 6, 2001
Hitachi, Ltd.
Mutsuhiro Mori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device and power converter using same
Patent number
5,898,199
Issue date
Apr 27, 1999
Hitachi, Ltd.
Mutsuhiro Mori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device having planar junction
Patent number
5,804,868
Issue date
Sep 8, 1998
Hitachi, Ltd.
Hideo Kobayashi
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Semiconductor device and power converter using same
Patent number
5,691,553
Issue date
Nov 25, 1997
Hitachi, Ltd.
Mutsuhiro Mori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Vertical insulated gate semiconductor device having high current de...
Patent number
5,670,811
Issue date
Sep 23, 1997
Hitachi, Ltd.
Mutsuhiro Mori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Power semiconductor device
Patent number
5,539,244
Issue date
Jul 23, 1996
Hitachi, Ltd.
Mutsuhiro Mori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Vertical insulated gate semiconductor device with less influence fr...
Patent number
5,285,094
Issue date
Feb 8, 1994
Hitachi, Ltd.
Mutsuhiro Mori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Parallel circuit module including a diode and an IGBT
Patent number
5,274,541
Issue date
Dec 28, 1993
Hitachi, Ltd.
Shin Kimura
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Method of manufacturing a power semiconductor device using implants...
Patent number
5,262,339
Issue date
Nov 16, 1993
Hitachi, Ltd.
Mutsuhiro Mori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor device and manufacturing method therefor
Patent number
5,208,471
Issue date
May 4, 1993
Hitachi, Ltd.
Mutsuhiro Mori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for fabricating insulated gate semiconductor device
Patent number
5,179,034
Issue date
Jan 12, 1993
Hitachi, Ltd.
Mutsuhiro Mori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method for fabricating insulated gate semiconductor device
Patent number
5,032,532
Issue date
Jul 16, 1991
Hitachi, Ltd.
Mutsuhiro Mori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Composite semiconductor device
Patent number
4,935,799
Issue date
Jun 19, 1990
Mutsuhiro Mori
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Vapor phase diffusion of aluminum with or without boron
Patent number
4,193,826
Issue date
Mar 18, 1980
Hitachi, Ltd.
Yasuhiro Mochizuki
H01 - BASIC ELECTRIC ELEMENTS